Lacon may refer to:
People Demetrius Lacon (late 2nd century BC), Greek philosopher Lacon baronets, of the English baronetcy Lacon family, a Sardinian dynasty Edmund Lacon (1807–1888), English politician Roland Lacon ( – 1608), English politician William Lacon ( – 1609), English politician Lacon D. Stockton, judge in Iowa, USA in 1856–1860
Places Lacon, Alabama Lacon, Illinois Lacon Township, Marshall County, Illinois
Other Lacon (beetle), a click beetle genus L.A.con (disambiguation), four World Science Fiction Conventions held in Anaheim, California, United States Oliver Lacon, a character in spy novels of John le Carré Lacon, one of the dogs that tore apart Actaeon
See also Laconia (disambiguation)